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56160551 = 57019851
BaseRepresentation
bin1101011000111…
…1000100100111
310220200020210102
43112033010213
5103334114201
65323414315
71251233246
oct326170447
9126606712
1056160551
1129779287
121698439b
13b8344c5
14765c95d
154de526b
hex358f127

56160551 has 4 divisors (see below), whose sum is σ = 56176104. Its totient is φ = 56145000.

The previous prime is 56160541. The next prime is 56160553. The reversal of 56160551 is 15506165.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 15506165 = 53101233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56160551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56160553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776 + ... + 10626.

It is an arithmetic number, because the mean of its divisors is an integer number (14044026).

Almost surely, 256160551 is an apocalyptic number.

56160551 is a deficient number, since it is larger than the sum of its proper divisors (15553).

56160551 is an equidigital number, since it uses as much as digits as its factorization.

56160551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15552.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 56160551 is about 7494.0343607432. The cubic root of 56160551 is about 382.9515103349.

The spelling of 56160551 in words is "fifty-six million, one hundred sixty thousand, five hundred fifty-one".

Divisors: 1 5701 9851 56160551